MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
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Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Fear of pain
An abnormal and persistent fear of pain. The fear is excessive, beyond that which is expected under the circumstances, producing an anxiety reaction. Fear of pain is termed 'algophobia,' a word derived from the Greek 'algos' (pain) and…
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Show more- Southeast Asian hemorrhagic fever A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage…
- Hair, lanugal The downy hair on the body of the fetus and newborn baby. The lanugal hair (or lanugo) is the first hair to…
- Dissection, axillary Surgery in which the axilla (the armpit) is opened -- to 'dissect' means to 'cut apart' -- in order to…
- Psychedelic 1. Hallucinogenic, distorting perception and awareness. 2. A drug such as LSD or mescaline that has…
- Neurone A variant spelling of neuron. Sometimes preferred in the UK, as in 'His suffering from motor neurone disease…
- Iridology The practice of diagnosing disease by examining the iris of the eye. Although some diseases do affect the…
- Lumen A luminous term referring to the channel within a tube such as a blood vessel or to the cavity within a…
- Synovial cyst, popliteal A swelling in the space behind the knee (the popliteal space). The swelling is composed of a membrane-lined…
- Dental impaction Teeth pressing together. For example, molar teeth (the large teeth in the back of the jaw) can be impacted…
- Marker gene A detectable genetic trait or segment of DNA that can be identified and tracked. A marker gene can serve as a…
- Study, diachronic See: Study, longitudinal
- Scoliosis, acquired Lateral (sideways) curving of the spine present at birth or due to a condition present at birth. The…